Edouabd lannay



(No Model.) El LANNAYI PUMP.

No. 257,954.l Patented May 16,1882.

UNiTEn STATES PATENT OFFICE.

EDOUARD LANNAY, OF LIMA, OHIO.

PUMP.

SPECIFICATION forming part of Letters Patent No. 257,954, datedl May 16,1882. f

` Application filed March 14, 188:2. (No model.) I

To all whom it may concern:

' Be it known that I, EDOUARD LANNAY, of Lima, in the county ot' Allenand State ot Ohio, have invented a new and useful Improvement in Pumps,of which the following is a specification.

My invention relates to improvements in the class of submergeddouble-actin g force-pump whose piston-rod, being tubular andterminating in a spout, is made available as the waterdischarge passage.

My present invention relates to a peculiarly and advantageouslyconstructed and arranged single vibrating. valve, which operatesalternately on two opposite seats within the piston or plunger.

Except in respect to its piston-valve and the inclosing chamber thereof,my pump may be substantially such as described in my patent grantedMarch 2, 1880, No. 225,148.

In the accompanying drawings, Figure 1 is i a vertical section ot' apump embodying my improvement, said section being taken in the plane ofthe axis of the piston-valve and the piston being on its descendingstroke. Figs. 2 and 3 are vertical sections in the plane at' rightangles to that of Fig. 1, the piston being in its descending and in itsascending strokes, respectively. Fig. 4 is a top view of thesuction-valve chamber. Fig. 5 is a perspective view of the piston-valvechamber, and Fig. 6 ot' the piston-valve detached.

Amay represent the platform; B, stanchion; G,"step; D, lever, and E, thecombined piston-rod and discharge-pipe, which may have the customaryconstruction of these members in pumps of this class. i

Frepresents one of a pair of rollers, of which one or more pairs may beused for deep wells or cisterns to maintain the rectilinearity of pipeE.

The body G and neck H of the pump-barrel preferably consist of a singlecasting, as represented, the neck being preferably nearly equal inlength to the barrel. There is the usual side passage, I, from thesuction-head to the upper portion of the pump-barrel.

The suction-head J is divided bya partition, j, into two chambers,KL,having seated openings or ports 7c l, for the two precisely similarsuction-valves M N, of which each valve consists ot' a circular diskot'cast-iron. Of these chambers the upper chamber, K, communicates withthe upper end of the barrel-space through the side passage, I, asalreadyintimated. The chamber L, on the contrary, communicates with thatportion of the barrel which is below the piston.

A plate, O, operates to limit the ascent of the valve M, and also toprevent any communication between chamber K and the lower portion of thebarrel, while permitting ready communication with the side passage, I. Abar, P, operates to limit the ascent ot' valve N without obstructing thepassage of Water from chamber L into the lower portion of the bar rel.Both plate Oyand bar P are held firmly down by the lower edge of thepump-barrel.

Q is the piston or plunger proper, having Acast in one integral piecewith it a neck, 1t, of

such length that a portion of such neck will protrude above that of thebarrel even in the lowest position of the piston.. The said piston-neckis screw-threaded interiorly at its upper end to receive thescrew-threaded lower extremity ot' the combined piston-rod anddischarge-pipe E. Sufticiently effectual waterpacking ot' thepiston-head Q and of its neck It and ofthe neck H of the pump-barrel isinsured by the great length of these members and by the circumferentialgrooves Z.

Oecupying the upper portion of the pistou Q, and held in positiontherein by pin or cotter S and spurs s, is my suction-valve chamber T.This chamber consists ot' two horizontal disks, W W', held slightlyapart by a hollow connecting-rib composed of two uptlarin g sides, U',ot' which each has an elliptical orifice, a or u', which communicatesrespectively with the compartments t t. Of these compartments one, t,communicates by port te with that part of the barrel which is below thepiston, and

the other compartment, tf, communicates by port w through orifice q withthat part ofthe barrel which is above the piston. The compartment a,formed by the inclosing partitions U U', is `open above, so as tocommunicate freely with the neck R of the pist0n, and thence with thedelivery.

In my presentform asinglevalve discharges effectively the functions ofthe two pistonvalves ot' my above-cited patent. This valve consists ofan oblong D-shaped disk, V, of castiron, whose half-round lower edge, o,rests in a corresponding trough, ti", in the floor of the compartmentu". This valve, except at the 5 instant of reversal, rests always on oneor other of the orifices a or u', according to whether the piston is nits downward or upward stroke, permitting the water to flow only throughthe orifice which is, for the time being, uncovered. ro (See dottedarrows.) In this manner a continuous and imiutermittent ow of water issecured with the use of but three valves of the .simplest possibleconstruction, in which each valve consists of a loose piece of castmetal I5 merely dropped loosely in its housing or chamber, and havingand needing no attaching dcvices Whatever.

Having thus'described my invention, the fol'- lowing is what I claim asnew therein and de- 2o sire to secure by Letters Patent:

In a double-acting submerged pump, the combination, with the barrel H Iand the lower or suction valve system, J, and with the tubular combinedpiston and piston-rod Q R, of the separable piston-valve chamber T,having 25 the horizontal ported disks NV w W' w', connected in oneintegral casting by the uptlared ported partitions U u U u', forming thecompartments t t u, that communicate respectively with the lower andupper portions of the 3o barrel and with the piston-discharge neck, andof which the compartment u confines and affords double seat-bearing tothe valve V n, in the manner set forth.

In testimony of which invention I hereunto 35 set my hand.

EDOUARD LANNAY. Attest:

M. L. BAKER, e P. S. LAYoooK.

